[PATCH 5.10] crypto: tcrypt - Fix missing return value check

[PATCH 5.10] crypto: tcrypt - Fix missing return value check

[Denis Arefev]

From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

[ Upstream commit 7b3d52683b3a47c0ba1dfd6b5994a3a795b06972 ]

There are several places where the return value check of crypto_aead_setkey
and crypto_aead_setauthsize were lost. It is necessary to add these checks.

At the same time, move the crypto_aead_setauthsize() call out of the loop,
and only need to call it once after load transform.

Fixes: 53f52d7aecb4 ("crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite")
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Vitaly Chikunov <vt@altlinux.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denis Arefev <arefev@swemel.ru>
---
 crypto/tcrypt.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 7972d2784b3b..580c50afa587 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -290,6 +290,11 @@ static void test_mb_aead_speed(const char *algo, int enc, int secs,
 	}
 
 	ret = crypto_aead_setauthsize(tfm, authsize);
+	if (ret) {
+		pr_err("alg: aead: Failed to setauthsize for %s: %d\n", algo,
+		       ret);
+		goto out_free_tfm;
+	}
 
 	for (i = 0; i < num_mb; ++i)
 		if (testmgr_alloc_buf(data[i].xbuf)) {
@@ -315,7 +320,7 @@ static void test_mb_aead_speed(const char *algo, int enc, int secs,
 	for (i = 0; i < num_mb; ++i) {
 		data[i].req = aead_request_alloc(tfm, GFP_KERNEL);
 		if (!data[i].req) {
-			pr_err("alg: skcipher: Failed to allocate request for %s\n",
+			pr_err("alg: aead: Failed to allocate request for %s\n",
 			       algo);
 			while (i--)
 				aead_request_free(data[i].req);
@@ -565,13 +570,19 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 	sgout = &sg[9];
 
 	tfm = crypto_alloc_aead(algo, 0, 0);
-
 	if (IS_ERR(tfm)) {
 		pr_err("alg: aead: Failed to load transform for %s: %ld\n", algo,
 		       PTR_ERR(tfm));
 		goto out_notfm;
 	}
 
+	ret = crypto_aead_setauthsize(tfm, authsize);
+	if (ret) {
+		pr_err("alg: aead: Failed to setauthsize for %s: %d\n", algo,
+		       ret);
+		goto out_noreq;
+	}
+
 	crypto_init_wait(&wait);
 	printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
 			get_driver_name(crypto_aead, tfm), e);
@@ -607,8 +618,13 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 					break;
 				}
 			}
+
 			ret = crypto_aead_setkey(tfm, key, *keysize);
-			ret = crypto_aead_setauthsize(tfm, authsize);
+			if (ret) {
+				pr_err("setkey() failed flags=%x: %d\n",
+					crypto_aead_get_flags(tfm), ret);
+				goto out;
+			}
 
 			iv_len = crypto_aead_ivsize(tfm);
 			if (iv_len)
@@ -618,15 +634,8 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 			printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ",
 					i, *keysize * 8, *b_size);
 
-
 			memset(tvmem[0], 0xff, PAGE_SIZE);
 
-			if (ret) {
-				pr_err("setkey() failed flags=%x\n",
-						crypto_aead_get_flags(tfm));
-				goto out;
-			}
-
 			sg_init_aead(sg, xbuf, *b_size + (enc ? 0 : authsize),
 				     assoc, aad_size);
 
-- 
2.25.1

[PATCH 5.10] crypto: tcrypt - Fix missing return value check

[Denis Arefev]

From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

commit 7b3d52683b3a47c0ba1dfd6b5994a3a795b06972 upstream.

There are several places where the return value check of crypto_aead_setkey
and crypto_aead_setauthsize were lost. It is necessary to add these checks.

At the same time, move the crypto_aead_setauthsize() call out of the loop,
and only need to call it once after load transform.

Fixes: 53f52d7aecb4 ("crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite")
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Vitaly Chikunov <vt@altlinux.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[Denis: minor fix to resolve merge conflict.]                                           
Signed-off-by: Denis Arefev <arefev@swemel.ru> 
---
 crypto/tcrypt.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 7972d2784b3b..580c50afa587 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -290,6 +290,11 @@ static void test_mb_aead_speed(const char *algo, int enc, int secs,
 	}
 
 	ret = crypto_aead_setauthsize(tfm, authsize);
+	if (ret) {
+		pr_err("alg: aead: Failed to setauthsize for %s: %d\n", algo,
+		       ret);
+		goto out_free_tfm;
+	}
 
 	for (i = 0; i < num_mb; ++i)
 		if (testmgr_alloc_buf(data[i].xbuf)) {
@@ -315,7 +320,7 @@ static void test_mb_aead_speed(const char *algo, int enc, int secs,
 	for (i = 0; i < num_mb; ++i) {
 		data[i].req = aead_request_alloc(tfm, GFP_KERNEL);
 		if (!data[i].req) {
-			pr_err("alg: skcipher: Failed to allocate request for %s\n",
+			pr_err("alg: aead: Failed to allocate request for %s\n",
 			       algo);
 			while (i--)
 				aead_request_free(data[i].req);
@@ -565,13 +570,19 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 	sgout = &sg[9];
 
 	tfm = crypto_alloc_aead(algo, 0, 0);
-
 	if (IS_ERR(tfm)) {
 		pr_err("alg: aead: Failed to load transform for %s: %ld\n", algo,
 		       PTR_ERR(tfm));
 		goto out_notfm;
 	}
 
+	ret = crypto_aead_setauthsize(tfm, authsize);
+	if (ret) {
+		pr_err("alg: aead: Failed to setauthsize for %s: %d\n", algo,
+		       ret);
+		goto out_noreq;
+	}
+
 	crypto_init_wait(&wait);
 	printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
 			get_driver_name(crypto_aead, tfm), e);
@@ -607,8 +618,13 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 					break;
 				}
 			}
+
 			ret = crypto_aead_setkey(tfm, key, *keysize);
-			ret = crypto_aead_setauthsize(tfm, authsize);
+			if (ret) {
+				pr_err("setkey() failed flags=%x: %d\n",
+					crypto_aead_get_flags(tfm), ret);
+				goto out;
+			}
 
 			iv_len = crypto_aead_ivsize(tfm);
 			if (iv_len)
@@ -618,15 +634,8 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 			printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ",
 					i, *keysize * 8, *b_size);
 
-
 			memset(tvmem[0], 0xff, PAGE_SIZE);
 
-			if (ret) {
-				pr_err("setkey() failed flags=%x\n",
-						crypto_aead_get_flags(tfm));
-				goto out;
-			}
-
 			sg_init_aead(sg, xbuf, *b_size + (enc ? 0 : authsize),
 				     assoc, aad_size);
 
-- 
2.43.0

Re: [PATCH 5.10] crypto: tcrypt - Fix missing return value check

[Sasha Levin]

[ Sasha's backport helper bot ]

Hi,

Summary of potential issues:
ℹ️ Patch is missing in 6.13.y (ignore if backport was sent)
⚠️ Commit missing in all newer stable branches

The upstream commit SHA1 provided is correct: 7b3d52683b3a47c0ba1dfd6b5994a3a795b06972

WARNING: Author mismatch between patch and upstream commit:
Backport author: Denis Arefev<arefev@swemel.ru>
Commit author: Tianjia Zhang<tianjia.zhang@linux.alibaba.com>

Status in newer kernel trees:
6.13.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (exact SHA1)
6.1.y | Present (exact SHA1)
5.15.y | Present (exact SHA1)
5.4.y | Not found

Note: The patch differs from the upstream commit:
---
1:  7b3d52683b3a4 ! 1:  e9b5236ad8829 crypto: tcrypt - Fix missing return value check
    @@ Metadata
      ## Commit message ##
         crypto: tcrypt - Fix missing return value check
     
    +    commit 7b3d52683b3a47c0ba1dfd6b5994a3a795b06972 upstream.
    +
         There are several places where the return value check of crypto_aead_setkey
         and crypto_aead_setauthsize were lost. It is necessary to add these checks.
     
         At the same time, move the crypto_aead_setauthsize() call out of the loop,
         and only need to call it once after load transform.
     
    -    Fixee: 53f52d7aecb4 ("crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite")
    +    Fixes: 53f52d7aecb4 ("crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite")
         Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
         Reviewed-by: Vitaly Chikunov <vt@altlinux.org>
         Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
    +    [Denis: minor fix to resolve merge conflict.]
    +    Signed-off-by: Denis Arefev <arefev@swemel.ru>
     
      ## crypto/tcrypt.c ##
     @@ crypto/tcrypt.c: static void test_mb_aead_speed(const char *algo, int enc, int secs,
    @@ crypto/tcrypt.c: static void test_aead_speed(const char *algo, int enc, unsigned
      			if (iv_len)
     @@ crypto/tcrypt.c: static void test_aead_speed(const char *algo, int enc, unsigned int secs,
      			printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ",
    - 					i, *keysize * 8, bs);
    + 					i, *keysize * 8, *b_size);
      
     -
      			memset(tvmem[0], 0xff, PAGE_SIZE);
    @@ crypto/tcrypt.c: static void test_aead_speed(const char *algo, int enc, unsigned
     -				goto out;
     -			}
     -
    - 			sg_init_aead(sg, xbuf, bs + (enc ? 0 : authsize),
    + 			sg_init_aead(sg, xbuf, *b_size + (enc ? 0 : authsize),
      				     assoc, aad_size);
      
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.10.y       |  Success    |  Success   |